US stocks edge mostly lower; Amazon soars on surprise profit

FILE – In this Oct. 8, 2014, file photo, American flags fly in front of the New York Stock Exchange. Asian stock markets were rattled Friday, July 24, 2015, by a slump in Chinese manufacturing to a 15-year low and cautious... (AP Photo/Mark Lennihan, File)U.S. stocks drifted mostly lower in early trading Friday as investors reviewed the latest batch of corporate earnings and deal news. Health care stocks were among the biggest decliners.

KEEPING SCORE: The Dow Jones industrial average fell eight points, or 0.1 percent, to 17,723 as of 10:13 a.m. Eastern Time. The Standard & Poor’s 500 index slipped two points, or 0.1 percent, to 2,099. The Nasdaq composite gained seven points, or 0.1…